- All sections
- C - Chemistrymetallurgy
- C08K - Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K 7/04 - Fibres or whiskers inorganic
Patent holdings for IPC class C08K 7/04
Total number of patents in this class: 444
10-year publication summary
|
22
|
29
|
33
|
37
|
29
|
42
|
26
|
30
|
23
|
16
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Polyplastics Co., Ltd. | 603 |
19 |
| Idemitsu Kosan Co., Ltd. | 4224 |
10 |
| Arkema France | 4154 |
10 |
| Mitsubishi Engineering-Plastics Corporation | 307 |
10 |
| Toray Industries, Inc. | 6950 |
9 |
| Ticona LLC | 593 |
9 |
| Otsuka Chemical Co., Ltd. | 292 |
8 |
| Sekisui Chemical Co., Ltd. | 3433 |
7 |
| Sumitomo Chemical Company, Limited | 9043 |
6 |
| Rockwool A/S | 784 |
6 |
| 3m Innovative Properties Company | 17823 |
5 |
| Mitsubishi Gas Chemical Company, Inc. | 3468 |
5 |
| Unitika Ltd. | 452 |
5 |
| E. I. du Pont de Nemours and Company | 4050 |
4 |
| FUJIFILM Corporation | 29437 |
4 |
| Mitsubishi Chemical Corporation | 4525 |
4 |
| Daicel-evonik Ltd. | 52 |
4 |
| Japan Polypropylene Corporation | 130 |
4 |
| Johns Manville | 959 |
4 |
| LG Hausys, Ltd. | 822 |
4 |
| Other owners | 307 |